The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 2005
Filed:
Mar. 24, 2000
Peter Schelkens, Willebroek, BE;
Jan Cornelis, Overijse, BE;
Peter Schelkens, Willebroek, BE;
Jan Cornelis, Overijse, BE;
IMEC VZW, Leuven, BE;
Vrije Universiteit Brussel, Brussels, BE;
Abstract
Images are subband transformed to create a plurality of subband images. Each subband image includes a plurality of pixels. Each pixel is represented by a plurality of bits with each bit associated to a certain quantization level. Encoding of an image requires scanning essentially all the bits of essentially all the pixels of the image. While scanning in a particular order, one can exploit dependencies within groups of bits consecutively scanned for encoding purposes. Thus, bits of groups can be encoded together. In a subband and transformed image, the scanning order or scanning curve is defined by indicating in which order the system traverses the several subbands and the several quantization levels. One method is characterized in that the set of scanned bits which will be encoded together, and which thus form a group, bits of at least two different sub-images and at least two different quantization levels are recognized.